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(No Model.)

E. H. JUDKINS; Wick Ratchet Stop for Lamp Burners.

No. 236,708. Patented Jan. 18, 1881.v

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UNITED STATES PATENT IEEICE.

EDWIN H. JUDKINS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE- FOURTHTO ADAM GOOD, OF SAME PLACE.

WICK-RATCHET STOP FOR LAMP-BURNERS.

SPECIFICATION forming part of Letters Patent No. 236,708, dated January18, 1881.

Application filed October 22, 1880. (No model.)

To all 'whom it may concern:

Be it known that I, EDWIN H. JUDKINs, of the city and county of SauFrancisco,State of California, have invented a Wick-Ratchet Stop forLamp-Burners; and I hereby declare the following to be a full, clear,and exact description thereof.

My invention relates to an attachment for lamp-burners whereby the wicksare prevented 1o from slipping after having been once placed inposition.

It consists of a frictional clasp attached to the inner rim oftheburner, and embracing the shaft or spindle of the regulating-wheel,

and an assistant in a spring-arm attached to the outer rim of the burnerand pressing upon the periphery of the thumb or regulating wheel.

The object ot' my invention is to provide a 2o useful contrivance whichwill hold the wick in position and avoid the constant regulating inlamps used in street-cars, rail1oad-cars.and other vehicles and placeswhere the motion has a tendency to cause the wick to slip.

2 5 Referring to the drawings for a more particular description, FigureI shows one form of holding-clamp. Fig. 2 shows a modification of theholding-clamp, and in which both holding devices are applied.

3o Let A represent the ordinary lamp-burner with its regulatin g wheel Band shaft C. Fastened to the inner rim of the burner, as shown, is thefrictional clasp G, embracing the regulating-shaft C, andconsisting oftwo strips of metal tightened around the shaft by means of the screw W'.Thus the clasp is made tight enough to hold the shaft, so thatthejarring of the lamp cannot make it turn. This clasp G can also bemade of one piece of metal and 4o embracing the shaft C very tightly, asshown at a in Fig. l.

As an assistant to the clasp G, I can have attached, at a point on theouter rim of the burner, a short distance from the regulatingwheel B, aspring-wire, D, the other end of which is so bent as to form an arm, F,which presses upon the periphery ot' the regulatingwheel B, which mayhave a smooth edge, or it may be milled or provided with small teeth,whereby the arm F may obtain a firmer hold. 5o

By these contrivances, after placing the wick in such position as togive the required light, it remains fixed and cannot slip.

I am aware that various means have been used to regulate a wick; butthey all refer sim- 5 5 ply to its limits in height, and between thoselimits the contrivances have failed to prevent slipping. My invention isnot for limiting it, but is to prevent it from slipping at all afterhaving once been fixed. 6o

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The friction-al clasp or clamp G einbracing the regulating-shaft C,whereby said shaft is prevented from turning, substantially ashereinbefore described.

2. In combination with a lamp-burner, the frictional clasp or clamp Gembracing the regulating-shaft C, and the frictional attach- 7o ment Dacting on the regulating-wheel B, substantiall y as and for the purposeshereinbefore described.

In witness whereof I have hereunto set my hand.

EDWIN H. J UDKINS.

Witnesses:

WM. F. BOOTH, S. H. NoURsE.

